Pointers: NULL vs. 0

[hackerNovitiate]

You shouldn't (or at least needn't) use NULL in C++ code. NULL is a C macro while C++ has "null" and "0" defined, you should use either of them.

I tried to compile

int *p = null;

int *p = null;

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but g++ reported "error: 'null' was not in this scope". Do I need to #include something?

Also, I was directed to Bjarne Stroustrup's (creator of C++) website at http://www2.research.att.com/~bs/bs_faq2.html#null where he said "In C++, the definition of NULL is 0, so there is only an aesthetic difference. I prefer to avoid macros, so I use 0" which sounds like NULL is ok in C++...?

Sorry for posting in the wrong forum; I thought it was Qt thing instead of a C++ thing.